Arizona Real Estate License Practice Exam 2026 - Free Real Estate Practice Questions and Study Guide

To determine how many 150 x 90 lots can fit within the given 15 acres after accounting for 20% of the land set aside for streets, sidewalks, and alleys, you'll need to follow these steps:

1. **Calculate the total usable acreage**: Since 20% of the land is designated for infrastructure, you should first calculate the remaining usable area. You start with 15 acres and subtract 20%, which is equivalent to 3 acres (15 acres x 0.20). This leaves you with 12 acres of usable land (15 - 3 = 12 acres).

2. **Convert acres to square feet**: Each acre contains 43,560 square feet. Therefore, 12 acres will amount to 522,720 square feet (12 acres x 43,560 sq ft/acre).

3. **Determine the area of one lot**: A lot that measures 150 feet by 90 feet has an area of 13,500 square feet (150 ft x 90 ft).

4. **Calculate the number of lots**: Finally, divide the total usable square footage by the area of one lot. This means you take 522,720 square feet and divide it by